<SigH> That Prime is just not Prime without the faceplate? A robot yes, but not Prime unless he has the damn plate.

Cybertron Prime without the faceplate made him look creepy. He had a lips and yet could not shed emotion for the kids when abandoning them? *tackles some random stranger and screams "Ops was a truck!!!" *

I don't know, Cybertron Prime without his faceplate is not all that different face wise from Optimal Optimus. Animated completely differently, yes, but the upper brace above the mouth and the "chinstrap" below are common to both the designs.

Agree with the lack of emotion, the CGI didn't really bring out the emotions of the characters, other than the odd occasion where they clearly went a bit above and beyond on the animation and redid the models specially for that one scene.